Bib



FIG. 1 is a front view of a bib showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof.

The broken lines represent the portions of the bib, which forms no part of the claimed design. 

CLAIM The ornamental design for a bib, as shown and described. 